中考英語被動語態解析
一、被動語態用於以下幾種情況
1. 不知道或沒有必要指出動作的執行者。如：
Many new buildings are built in our city.
2. 強調動作的承受者。如：
The wounded man has been sent to a hospital.
3. 動作執行者有比較長的修飾語。如：
The person was supported by those who wished to have a chance to make friends with him.
4. 出於禮貌，不願說出動作的執行者。如：
You are requested to attend the party.
二、過去分詞作表語與被動語態的區別
1. 系表結構中的'過去分詞是表示主語的特徵或狀態；而被動結構則是表示主語是動作的承受者。試比較：
Our building is surrounded with the trees.
The film is usually showed on Sunday.
2. 系表結構不能帶有by引導的短語；而被動結構中可以用by引導的短語引出動作的執行者。試比較：
The book is well written.
The book was written by Lu Xun.